ABOUT THIS MANUAL

This document is intended for professional engineers and academic researchers, allowing them to understand the concept of operating the device and to integrate this knowledge into systems with components of other manufacturers.

DISCLAIMER

Translation of the original Product Manual ReXgen2.

COPYRIGHT & LICENSE AGREEMENT

The content of this document, including all brands and trademarks and possibly protected by third-party rights, is subject to the terms of the valid trademark law and intellectual property rights of their respective registered owner.

© 2020 INFLUX TECHNOLOGY. All rights reserved.

CONTACT ADDRESS

Influx Technology Ltd

Millbrook Proving Ground, Station Lane

Bedford, MK45 2JQ, United Kingdom

Telephone: +44 (0) 1525 842504,

Sales: sales@influxtechnology.com

Support: docs.influxtechnology.com

www.influxtechnology.com

SAFETY INSTRUCTIONS

• Ensure the device is installed, connected, and commissioned by a qualified professional following all safety norms.

• Disconnect the device completely before handling it, and disconnect any independently supplied output load circuits.

• Do not connect the housing to the Ground externally. This will suspend the reverse voltage protection of the power supply. Applying a reverse voltage, in this case, will destroy the supply circuits.

• Provide all the device connectors with plugs and any protection caps required to ensure protection class IP65.

• Never immerse the device in water or other liquids.

• The manufacturer must only repair the device.

• Keep substances that contain solvents away from the label.

• Do not use the logger's USB port for stand-alone data logging purposes, as it may damage the USB port, which won't be covered under warranty.

The following formatting and symbols will help you recognise the purpose of each paragraph:

Along with the free, user-friendly configuration software, the standalone ReXgen2 logger comes with the following advantages:

• The extreme level of compactness – pocket size

• Tolerable to harsh environments with an IP65 rating

• Secure data storage with an internal eMMC

• Supports CAN, CAN FD & LIN buses.

• Functions as an interface device and supports J2534 (Pass-thru).

• Supports live CAN trace monitoring, RAW CAN signals, and SAE J1939.

• Sleep modes with wake up on CAN, wake on alarm & wake up on signal

• Most advanced trigger & filter conditions

• In-built gyroscope & accelerometer modules

• 2 x digital & 2 analog inputs

• Up to 18 Hz rate GNSS module

• Micro USB 2.0 PC interface

• Internal temperature sensor

• CAN error logging

Available Models

Technical Specifications

PRODUCT DRAWINGS

DEVICE ELEMENTS

Electrical Data

* CEP - circular error probable

The ReXgen2 is one of the most compact, pocket-sized data loggers suitable for automotive and various industrial applications. The device is designed to log data continuously for hours from a CAN bus and simultaneously save it to the embedded SD memory card. The device is tolerable in all harsh environments, requiring IP65 class protection. It can be easily mounted and integrated with your vehicle/machine.

Influx Technology assumes no liability for damages caused by normal wear, installation errors, or operating or maintenance faults. Applicable also when the user modifies the devices, any accessories, or the Software without the prior approval of Influx Technology.

For detailed information on the respective tests, see Chapter Certifications.

The device meets the following standards and legal requirements:

Compliance with CE

This device complies with the directives, standards, and normative documents listed in the chapter 'Certifications'.

Compliance with FCC

This device complies with the directives, standards, and normative documents listed in the chapter 'Certifications'.

Compliance with ROHS

This device complies with the directives, standards, and normative documents listed in the chapter 'Certifications'.

HARDWARE

Packaging will contain the following components:

INF 2110.01/02

• 1x Rexgen2 with integrated cable

• 1x Micro USB

INF 2112.02/03

• 1x Rexgen2 with integrated cable

• 1x Micro USB

• 1x GNSS Antenna with 5M long cable

SOFTWARE

ReXgen2 device will be supplied with a freely distributed configuration and data retrieval software, ReXdesk.

The Software can be downloaded from our website, www.influxtechnology.com.

Please visit the support section on our website www.influxtechnology.com.

The latest versions of the drivers, Software, and firmware are available here.

INSTALLATION

The contents below specify the conditions to be ensured for the operation of ReXgen2.

GROUNDING

Since providing a common ground between nodes is not required, having ground offsets between nodes is possible. Each node may observe different single-ended bus voltages (common mode bus voltages) while maintaining the same differential voltage. Operating a CAN system with large ground offsets can increase electromagnetic emissions. Steps must be taken to eliminate ground offsets if the system is sensitive to emissions.

TERMINATION

ISO-11898 requires that the CAN bus have a nominal characteristic line impedance of 120Ω. Therefore, the typical terminating resistor value for each bus end is 120Ω. Bus termination is used to minimise signal reflection on the bus.

SUPPLY VOLTAGE

It is always recommended to keep the nominal voltage within the specified rate. The device is also internally protected against low energy voltage events due to supply wire noise.

ISOLATION

MOUNTING

ANTENNA

An external active antenna with a supply voltage of 3V is required for GNSS data logging. Ensure that the antenna is connected correctly at all times and that it is not loose when the ReXgen2 is powered on. Operation with a loose antenna or without the antenna entirely can lead to GNSS data loss.

Cables

ReXgen2 comes with integrated cables with a 9-pin D-Type connector. ReXgen2 is also available with Rugged Automotive specification connectors, made per bulk order requests. The device will have a micro-USB cable and a GNSS antenna with an integrated 5M cable (INF2112.02/03).

PIN DETAILS:

There are two connectors, a male and female 9-pin Standard D-Type connector.

Channel 0 Connector

Channel 1 Connector

LED 1 - Channel 0 / CAN FD 0 - Green

LED 2 - Channel 1 / CAN FD 1– Amber

Click to purchase.

The device can effectively log data on field tests and a bench via CAN/CAN FD interfaces. The device supports all standard CAN/CAN FD baud rates. ReXdesk software allows users to configure ReXgen2 with custom baud rates and modify advanced bit timings. ReXdesk also enables the user to configure ReXgen2 with CAN & J1939 filters. All logged data is saved to the secure embedded memory. The user can configure triggers based on CAN IDs, parameter values & J1939 DM1 messages to start or stop logging.

For a step-by-step guide, click here.

How to configure the ReXgen data logger to record CAN data

The device can be effectively used to log data on field tests and bench via LIN interfaces. All logged data is saved to the embedded SD memory card.

How to configure ReXgen data logger to record LIN data.

The device consists of an internal GNSS module and an external active antenna with a supply voltage of 3V. This receiver can evaluate signals from the GNSS/QZSS, GLONASS, BeiDou and Galileo satellites. GNNS data can be logged at sampling rates up to 18HZ.

*Applicable only for ReXgen2 IMU version.

For a step-by-step guide, click here.

How to configure IMU, and GNSS using ReXdesk.

The device consists of an internal accelerometer and gyroscope module. The acceleration output data rate is up to 6664 Hz with a vibration rate of ±2/±4/±8/±16 g at full scale. The angular output data rate of the gyroscope is up to 1666 Hz with ±125/±250/±500/±1000/±2000 dps at full scale.

*Applicable only for ReXgen2 IMU version

For a step-by-step guide on how to log Accelerometer data, click

For a step-by-step guide on how to log Gyroscope data, click

How to configure IMU, and GNSS using ReXdesk.

For instance, the input function can log status information from devices, machines, and sensors to determine and monitor switch and key states directly. You can record the data determined from the input functions, which can be used to create triggers for starting and stopping logging.

For a step-by-step guide, click.

How to configure analog and digital channels using ReXdesk.

ReXgen2 is designed to function as a data logging device and a capable pass-thru device. The communication protocols supported by ReXgen2 as a J2534 tool are ISO14229, ISO14230, CAN (ISO11898), ISO15765, and J1939.

It allows the users to connect to the vehicle CAN Bus using the Pass-Thru API (Application Program Interface), enabling you to create programs that accomplish your vehicle communication needs. Influx Module Analyser, SavvyCAN and K-Cal Software already support the pass-thru feature.

ReXgen J2534 (pass-thru) installation step-by-step guide.

Video tutorial

CONNECTING THE DEVICE

POWER

Power supply to the product is given using connector A, the male, 9-pin standard D-type connector.

CAN/CAN FD

ReXgen2 can be interfaced to the CAN/CAN FD bus, from which data will be logged using D-Sub 9 connector A or connector B. The CAN-high and CAN-low from the vehicle or machine terminals must match the CAN-high and CAN-low terminal of the ReXgen2. ReXgen2 should be configured with the same baud rate as the device to which it is interfaced.

ANALOG & DIGITAL INPUT

ReXgen2 supports 2 analog inputs in (the range of) ±10 V. The 2 analogue inputs are interfaced to the ReXgen2 via a D-Sub 9 connector B. ReXgen2 also supports two digital inputs. The digital inputs are interfaced to the ReXgen2 via a D-Sub 9 connector A.

USB

For configuration and test purposes, you can connect the device to a PC via a USB communication gateway. The device is supplied with a standard Micro USB cable. Please note that the USB is not isolated; an isolator can be purchased separately.

Make sure you have installed the Microsoft Visual C++ Redistributable.

You can download it from the following link: https://www.microsoft.com/en-us/download/details.aspx?id=48145

To begin the installation of the ReXdesk Software, open the installer by running the set-up file.

• To continue installing ReXdesk on your system, click 'Next'.

• To cancel the installation at this stage, click 'Cancel' (No software will have been installed on the system now).

• Select the folder where you wish to install the Software; it is preferred to use the default location.

• Select the preference for computer user installation to determine which computer users can access the ReXdesk Software.

• Click 'Next' to continue with the installation.

• To continue installing ReXdesk on your system, click 'Next'.

• Once the installation is complete, this window will appear.

• Click 'Close' to close the window.

ReXdesk is now successfully installed on your system.

To install the ReXgen driver, run the .exe file in this location:

C:\Program Files (x86) \Influx Technology\ReXdesk\Drivers.

Or

• To install the ReXgen1 driver, locate the ReXgen1 Drivers installer from the start menu.

• Run the ReXgenInstaller.exe file.

Run the ReXgenInstaller.exe file.

• Click 'Next' to continue installing the ReXgen device driver on your system.

• To cancel the installation at this stage, click 'Cancel'. (No software will have been installed on the system now.)

• Please Read the licence agreement carefully.

• Once you understand and accept the licence agreement, please click 'I accept this EULA' to continue with the installation of the driver. If you do not accept the terms, please click 'Cancel' to stop the installation at this point.

• Click 'Next' to continue the installation process.

• Once the installation is complete, this window will appear.

• Click 'Finish' to close the window. The ReXgen2 driver is now successfully installed on your system.

• Download the J2534 driver and execute the file.

• Download the ReXgen J2534 driver installation guide

• Click 'Install.'

After successful installation, the Windows Registry should contain J2534 ReXgen properties.

Click for the firmware zip file.

Firmware can be updated using the Reflash option in the ReXdesk Software.

The latest firmware can also be located here:

C:\Program Files (x86)\Influx Technology\ReXdesk\Firmware\RexFirmware.zip

Click for a step-by-step tutorial video on updating the firmware of a ReXgen data logger.

Digital Input Functions

Certifications

CAN Overview

CAN is a "Controller Area Network, " defined in the ISO 11898 specification.

The Controller Area Network (CAN, also known as CAN Bus) is a vehicle bus standard designed to allow electronic control units and devices to communicate in applications without a host computer. As an alternative to conventional multi-wire looms, the CAN Bus allows various electronic components (such as electronic control units, micro-controllers, devices, sensors, actuators and other electronic components throughout the vehicle) to communicate on a single or dual-wire network data bus up to 1 Mbit/s.

CAN BUS COMPONENTS

CAN Controller receives the transfer data from the microcomputer integrated into the control unit/device (also known as CAN Node). The CAN controller processes this data and relays it to the CAN transceiver. Also, the CAN controller receives data from the CAN transceiver, processes it and relays it to the microcomputer integrated into the control unit/device (CAN Node).

CAN Transceiver is a transmitter and receiver in one. It converts the CAN controller's data into electrical signals and sends it over the data bus lines. Also, it receives data and converts this data for the CAN controller.

CAN Data Bus Termination is a resistor (R) typically of 120Ω. It prevents data sent from being reflected at the ends and returning as an echo, ensuring the bus gets the correct DC levels.

MAXIMUM BUS SPEED & CABLE LENGTH

The CAN bus uses inexpensive twisted pair wires to send data. All the nodes are connected to the same line (bus) with small branch lines. The signals on the two CAN lines have the same data sequence, but their amplitudes are opposite. So, if a pulse on the CAN-H line goes from 2.5V to 3.75V, the corresponding pulse on the CAN-L line goes from 2.5V to 1.25V (opposite to CAN-H).

According to the standard, the maximum speed of a CAN bus is 1 Mbit/second. At a speed of 1 Mbit/s, a maximum cable length of about 40 meters (130 ft.) can be used. This is because the arbitration scheme requires that the wavefront of the signal can propagate to the most remote node and back again before the bit is sampled.

• The maximum speed achievable is 1Mbps.

• The maximum length achievable is 500 metres at a lower speed of 125 Kbps.

• The bus should be terminated at both ends with 120-ohm resistance.

• Removal of one node will not affect the communication in the bus.